623774560 has 96 divisors (see below), whose sum is σ = 1601510400. Its totient is φ = 228718080.

The previous prime is 623774519. The next prime is 623774587. The reversal of 623774560 is 65477326.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90931 + ... + 97549.

It is an arithmetic number, because the mean of its divisors is an integer number (16682400).

Almost surely, 2^623774560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623774560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800755200).

623774560 is an abundant number, since it is smaller than the sum of its proper divisors (977735840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623774560 is a wasteful number, since it uses less digits than its factorization.

623774560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 6676 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 623774560 is about 24975.4791745824. The cubic root of 623774560 is about 854.4288149512.

The spelling of 623774560 in words is "six hundred twenty-three million, seven hundred seventy-four thousand, five hundred sixty".